20155890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{21673}}^1$

素因数の和:21714

約数の個数: 32

約数和(自身を含む): 49936896

約数和(自身を除く): 29781006

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 31, 62, 93, 155, 186, 310, 465, 930, 21673, 43346, 65019, 108365, 130038, 216730, 325095, 650190, 671863, 1343726, 2015589, 3359315, 4031178, 6718630, 10077945, 20155890]

約数ペア:

[(1, 20155890), (2, 10077945), (3, 6718630), (5, 4031178), (6, 3359315), (10, 2015589), (15, 1343726), (30, 671863), (31, 650190), (62, 325095), (93, 216730), (155, 130038), (186, 108365), (310, 65019), (465, 43346), (930, 21673)]